XL only supports 15 digits of significance. As such, I don't think there's a way to 1)input the numbers you're wanting and 2) have it calculate the result. You're also going to struggle with accuracy, since XL (and most computers) have to store the numbers in binary.
Thank you very much and very sorry for your tiredness
And indeed at the hands of your presence and graciously you and you are credited with solving my problem
Thank you, Professor Generous with all my heart
and elso thanks alot for mr.Hui